Monthly Summary - July 2023

 A very poor summer month

     Usually even in the poorest of summer months there would be at least one or two days that manage to imitate 'something summery', but not this one! Not a single day in July could be described thus. It was a truly awful month that saw rain, heavy at times, become a frequent visitor and day-time maxima that were heavily suppressed.

  With the Jet Stream on a meandering route to our south, it left the UK to its north and at the mercy of low pressure systems; whilst much of Europe suffered with excessive heat, we endured rain and cool day-time temperatures. With the skies often being cloudy, the mean minimum temperature for the month held up very well, in fact finishing above average, but the same could not be said for the mean maximum temperature. With a lack of sunshine this was heavily suppressed and finished 1.54°c below average and during the month only four days would attain 20°c and 26 days would fail to attain the seasonal average of 19.7°c.

  The first seven days of the month were actually very dry, but from the 8th there would only be one more dry day and some of the daily falls were quite heavy. As with the 14-15th and 22nd-23rd it was also a case of heavy falls over a two day period. The month finished as the second wettest in my records.

 

  In spite of low pressure (LP) surrounding the UK, the start of the month was relatively quiet with little rainfall (just 1.8 mm) during the 1st to 7th. However, it was fairly windy, mainly cloudy with little sun and the day-time maxima were very disappointing; the first five days didn't get above 17°c and were generally stuck between 15.5° and 16.5°c.

  Then it started to get wet! From the 8th (apart from the 24th) some rain was recorded on every day as a succession of LP systems visited our part of the world and took control of the weather. The rain wasn't always heavy, but there were still some large daily falls with daily maximum temperatures consistently stuck below average.

  However, the three days of the 7-9th all managed to top 20°c. The 7th did manage a sunny afternoon which saw the temperature rise to a month's high of 24.7°c, which was then repeated on the 8th, but which coincided with the start of the 'wet spell'. The rain arrived early afternoon with a spell of thunder and lightning at 17h with heavy showers and/or spells of heavy rain throughout the evening. The rain continued overnight into the 9th, heavily through to 0230h and with more lightning; a total fall of 27.1 mm being recorded.

  The next few days saw a mix of showers and some sunny intervals, until the 14th when an area of LP in Biscay deepened and moved north, tracking north through Eire. However, its associated fronts brought us a couple of wet days, 17.4 mm on the 14th was followed by 21.1 mm on the 15th.

  It was a return to the mix of cloud, showers and some sunny intervals over the next few days, but with the 18th being especially poor as a shallow area of LP with active fronts moved across the UK from the SW. It rained just about all day, although just 7.4 mm was recorded, but it was more notable for providing a maximum temperature of just 14.9°c (58.8°f).

  The 20th did see some sunny intervals, but even then the temperature failed to attain 20°c and now the next few days would generally be described as 'bleak', they were also the first weekend of the school holidays! Friday 21st saw variable amount of cloud with some showers (8.0 mm) and then the Saturday (15.5 mm) saw rain from 09h with drizzle a.m. but whilst the afternoon was dry, it was totally grey and murky. The majority of the rain for the 22nd fell overnight into the 23rd and it just kept on raining all day (putting an end to England's chances in 'The Ashes') and which gave another 18.5 mm. Whilst the nights were mild, the days weren't, both the 21st and 22nd were stuck at just over 17°c, but the 23rd was a miserable and cool 15.0°c.

  The 24th provided is with the rarity of a dry day, but behind the fronts of the 23rd, we were exposed to NW'ly flow and a maximum of just 16.4°c ... and then the rain returned!

  The final five days of the month were certainly mild ... by night. Under endless cloudy skies a lid was kept on the temperature falling away at night, problem was, it didn't have that far to fall from! During the 27th to 30th LP in the Atlantic became almost stationary and whilst the rainfall totals were only slight, the depression of grey, overcast skies, some rain and temperatures that were down at 17°c, finally brought a poor month to a close.

 

  MSLP of 1007.5 Mb was -6.5 MB below average for the month and overall a mean minimum of 11.19°c and a mean maximum of 18.15°c saw the temperature 0.51°c below the fourteen year average for this site.

  It was the coldest July since 2020 and since the record began (2009), seven have been warmer and seven colder - the highest maximum temperature recorded during the month being 24.7°c (7+8th), the lowest minimum 6.9°c (20th).

  Rainfall of 155.9 mm (Maulds Meaburn North 155.9 mm -- Castlehowe Scar 203.3 mm) was 160.2% of average for 2007-22, making it the wettest July since 2009 and since the record began (2007), fifteen have been drier and one wetter.

  During the month the following 'days of' were recorded: Thunder on two days -- the wind speed averaged 5.45 mph, with a maximum gust of 39 mph (1st).

  We had 0 Air Frosts in the month (year 32)          --          Grass Frosts totalled 0 (year 64).

  The 1 foot soil temp ranged from a low of 16.1°c on the 3rd and 5-6th        to      a high of 17.5°c on the 10th     --      with a monthly mean of 16.7°c

  The 1 meter soil temp ranged from a low of 14.5°c on the 7-8th      to      a high of 15.3°c on the 24th     --     with a monthly mean of 14.9°c

   This makes the Jan' to July period of 2023 0.81°c warmer than the average for 2009-22 and with 97.8% of average rainfall for 2008-22

 

  At the Met' Office site at Shap a mean minimum of 10.7°c and a mean maximum of 17.5°c saw the monthly mean temperature 0.05°c above average. It was the coldest July since 2020 and since the record commenced (1992), 13 have been warmer, 15 colder, two were the same and there is no data for one year.

  Rainfall of 183.8 mm represents 172.3% of its average. It was the wettest July since 2010 and in a record that commenced in 1989, 32 have been drier and two have been wetter.

 

  Cumbria Rainfall

  Whilst the first week of the month was actually quite dry, the remainder of the month was anything but and which saw a number of sites record well in excess of double their LTA. In what was a very wet month only a handful of sites recorded less than 150% of their LTA, with no site recording less than the 140% found at Aisgill.

  The wettest parts of the county tended to be in the more northerly parts, Abbeytown in the NW recording 252.4% of its LTA, but 'wet pockets' did pop up elsewhere in central and eastern parts, but not on the western coastal fringe and unusually no site finished with a total fall below 100mm.

  Ulverston with a total fall of 111.2 mm had the lowest monthly total, rising to 502.8 mm at Ennerdale Black Sail and whilst the 15th was a very wet day across the county, it was particularly so within the LDNP where 87.4 mm fell at Honister (not the greatest UK 24Hr fall which this month fell in Devon and topped 100mm).

  Reservoir Storage - in response to the heavy rainfall in July total reservoir storage for North West England increased from 70% at the end of June to 74% at the end of July. At the end of July reservoir storage (in terms of percentage) was highest at Crummock and Ennerdale which were both at 100% full. Storage was lowest at Rivington at 59.8%. The combined storage at Haweswater and Thirlmere was 62.2% at the end of July which is higher than the level in 1995 and 2021 and at the average for the time of year.

 

  Figures from the Environment Agency's rainfall sites were, (figure in brackets being the monthly average for 1991-2020)   'Data kindly provided by the Hydrometry and Telemetry team of the Environment Agency (Penrith)':

  At Appleby in Westmorland rainfall of 128.8 mm (LTA of 75.0 mm) represents 171.7% of its average (1856-2022) and made it the wettest since 2009 - since the record commenced (1856), 154 have been drier, 13 have been wetter and one was exactly the same.

  Kirkby Thore ??? mm -- (64.7 mm)

  Haresceugh Castle (Kirkoswald) 172.12 mm -- (89.1 mm)

  Brothers Water 314.56 mm -- (161.3 mm)

  Seathwaite Farm (Borrowdale) 426.4 mm -- (228.2 mm [average for 1845-2022]) - making it the wettest since 2020 and since 1845 when the record commenced, 168 have been drier and 10 have been wetter.

 

July's Rainfall Anomalies %                                                                      July's Temp' Anomaly   

                    

 

  PREVIOUS MONTHS REPORTS

JANUARY 2010    FEBRUARY 2010    MARCH 2010    APRIL 2010    MAY 2010    JUNE 2010    JULY 2010    AUGUST 2010    SEPTEMBER 2010    OCTOBER 2010    NOVEMBER 2010    DECEMBER 2010   

JANUARY 2011    FEBRUARY 2011    MARCH 2011    APRIL 2011    MAY 2011    JUNE 2011    JULY 2011    AUGUST 2011    SEPTEMBER 2011    OCTOBER 2011    NOVEMBER 2011    DECEMBER 2011   

JANUARY 2012    FEBRUARY 2012    MARCH 2012    APRIL 2012    MAY 2012    JUNE 2012    JULY 2012    AUGUST 2012    SEPTEMBER 2012    OCTOBER 2012    NOVEMBER 2012    DECEMBER 2012    SUMMER 2012    REVIEW OF 2012   

JANUARY 2013    FEBRUARY 2013    MARCH 2013    APRIL 2013    MAY 2013    JUNE 2013    JULY 2013    AUGUST 2013    SEPTEMBER 2013    OCTOBER 2013    NOVEMBER 2013    DECEMBER 2013    REVIEW OF 2013   

JANUARY 2014    FEBRUARY 2014    MARCH 2014    APRIL 2014    MAY 2014    JUNE 2014    JULY 2014    AUGUST 2014    SEPTEMBER 2014    OCTOBER 2014    NOVEMBER 2014    DECEMBER 2014    WINTER 2014    REVIEW OF 2014   

JANUARY 2015    FEBRUARY 2015    MARCH 2015    APRIL 2015    MAY 2015    JUNE 2015    JULY 2015    AUGUST 2015    SEPTEMBER 2015    OCTOBER 2015    NOVEMBER 2015    DECEMBER 2015    REVIEW OF 2015   

JANUARY 2016    FEBRUARY 2016    MARCH 2016    APRIL 2016    MAY 2016    JUNE 2016    JULY 2016    AUGUST 2016    SEPTEMBER 2016    OCTOBER 2016    NOVEMBER 2016    DECEMBER 2016    REVIEW OF 2016   

JANUARY 2017    FEBRUARY 2017    MARCH 2017    APRIL 2017    MAY 2017    JUNE 2017    JULY 2017    AUGUST 2017    SEPTEMBER 2017    OCTOBER 2017    NOVEMBER 2017    DECEMBER 2017    REVIEW OF 2017   

JANUARY 2018    FEBRUARY 2018    MARCH 2018    APRIL 2018    MAY 2018    JUNE 2018    JULY 2018    AUGUST 2018    SEPTEMBER 2018    OCTOBER 2018    NOVEMBER 2018    DECEMBER 2018    REVIEW OF 2018   

JANUARY 2019    FEBRUARY 2019    MARCH 2019    APRIL 2019    MAY 2019    JUNE 2019    JULY 2019    AUGUST 2019    SEPTEMBER 2019    OCTOBER 2019    NOVEMBER 2019    DECEMBER 2019    REVIEW OF 2019   

JANUARY 2020    FEBRUARY 2020    MARCH 2020    APRIL 2020    MAY 2020    JUNE 2020    JULY 2020    AUGUST 2020    SEPTEMBER 2020    OCTOBER 2020    NOVEMBER 2020    DECEMBER 2020    REVIEW OF 2020   

JANUARY 2021    FEBRUARY 2021    MARCH 2021    APRIL 2021    MAY 2021    JUNE 2021    JULY 2021    AUGUST 2021    SEPTEMBER 2021    OCTOBER 2021    NOVEMBER 2021    DECEMBER 2021    REVIEW OF 2021   

JANUARY 2022    FEBRUARY 2022    MARCH 2022    APRIL 2022    MAY 2022    JUNE 2022    JULY 2022    AUGUST 2022    SEPTEMBER 2022    OCTOBER 2022    NOVEMBER 2022    DECEMBER 2022    REVIEW OF 2022   

JANUARY 2023    FEBRUARY 2023    MARCH 2023    APRIL 2023    MAY 2023    JUNE 2023   

  

OTHER ARTICLES

The Oldest Inhabitant    An Inch Of Scotch Mist    But it's meant to be Summer (Summer 2017)  

 

© Darren Rogers 2010-23

Want to comment on this site? email